₦airaland Forum

osayuwamwen:
am not seeing resting voltage on my inverter settings which one is resting voltage

Off course there’s no need to set the Battery Resting Voltage. If you set the appropriate Bulk and Floating charge voltages, a healthy 24V lithium battery will have around 27.2V as the resting voltage.

AyarmBoye:
Thanks for your detailed suggestions…How do I know a good used battery sef? Do you have someone that sells good used batteries and MPPT charge controller?….Although I plan to buy brand new Gpower tubular ba3 before but I heard fake batteries full market….

I await your response sir…This heat is just too much and man has been on generator all this while…

Don't allow anyone here market you to buy used battery please. You'll end up buying dead battery that you'll need to change within months.
Stick to your new 2.5kwh lithium battery as you already wanted.
Don't say you were not warned.

bassdow:
e ready. Just haven't met the right customer. Make e dey pray more people don't start knowing halfCut solar panels are much better

Even the half cut I get them for used ones 450watts half cut that I can sell for 55k

osayuwamwen:
is there a device I can use to read real time accurate battery percentage, estimated charging/discharging time remaining, battery amp left and temperature ?

A DC shunt will do the job for you.

Please where can i get them?
I need a used halfcut solar panel.450-600w

iraybuju:
Even the half cut I get them for used ones 450watts half cut that I can sell for 55k

ajabani4allah:
This is charging profile at the back of the X2 series inverter. There is no setting for lithium battery, the person is planning to get lithium battery and charge with only grid. How do we go about this now?

You can set bulk,cut of and float voltage on this inverter.Any inverter that has adjustable voltage settings will work with lithium

abuzz33:
Instead get 3kwh must solar generator that will carry fridge, fans, tv lights. 900k which I have. DM me.

Drop your contact

the lifep04 battery is not smart and no communication port

justasitis:
Those battery information are usually displayed in the BMS Interface whether through the screen display or accessed remotely on mobile device through Bluetooth or WiFi. So, try to find out the type of BMS attached to your lithium battery and download the appropriate mobile app to access the battery information on your phone.

ok

justasitis:
Off course there’s no need to set the Battery Resting Voltage. If you set the appropriate Bulk and Floating charge voltages, a healthy 24V lithium battery will have around 27.2V as the resting voltage.

omotoda:
You can set bulk,cut of and float voltage on this inverter.Any inverter that has adjustable voltage settings will work with lithium

Pls look at it very well, it only has "battery low cut off point" which is even for lead acid battery not lithium battery

justasitis:
I normally recommend: Bulk/Constant Voltage Charge : 28.4v
Floating Voltage: 27.8v or 27.7v
So that the battery Resting Voltage will be around: 27.2V

I am a little bit confused about this Bulk and floating voltage, is the bulk the same thing as the OVP and float OVPR on the JK BMS parameters?

osayuwamwen:
is there a device I can use to read real time accurate battery percentage, estimated charging/discharging time remaining, battery amp left and temperature ?

The only way to do this is to get the battery capacity meter below with 200A shunt or if you are handy(DIY guru) you can dismantle the battery get 200A JK smart BMS with 1A/2A active balancer and rebuild your battery. This is what I have just done, converting 2 pieces of 12v/280Ah lifepo4 battery to 24v/280Ah with the 200A JK Smart BMS. This second method is the best because you get to see everything going on around your battery and the BMS will manage your battery better. But is for those who are enthusiastic and have time.

You won't believe the type of wire I saw when opened up the battery pack. Imagine using 10mm wire thickness for a 12v/280Ah battery pack

ajabani4allah:
I am a little bit confused about this Bulk and floating voltage, is the bulk the same thing as the OVP and float OVPR on the JK BMS parameters?

The Bulk and Floating settings are normally done on the inverter not on the BMS. But there are necessary Settings to be done on the battery BMS also like the JK BMS to prevent overcharging and over discharge so as not to shorten the battery lifespan.

justasitis:
The Bulk and Floating settings are normally done on the inverter not on the BMS. But there are necessary Settings to be done on the battery BMS also like the JK BMS to prevent overcharging and over discharge so as not to shorten the battery lifespan.

Ok

AyarmBoye:
thanks for your time boss…it’s rated 12v…. I plan to buy 12v 200ah lithium battery….can 2 450 watts solar panels charge them?

for long term plan YES

or just buy 2pcs of 400w (or 380w) and pair with an external 60A charge controller. MPPT is always prefered.

ajabani4allah:
The only way to do this is to get the battery capacity meter below with 200A shunt or if you are handy(DIY guru) you can dismantle the battery get 200A JK smart BMS with 1A/2A active balancer and rebuild your battery. This is what I have just done, converting 2 pieces of 12v/280Ah lifepo4 battery to 24v/280Ah with the 200A JK Smart BMS. This second method is the best because you get to see everything going on around your battery and the BMS will manage your battery better. But is for those who are enthusiastic and have time.

You won't believe the type of wire I saw when opened up the battery pack. Imagine using 10mm wire thickness for a 12v/280Ah battery pack

I reCall saying such several times but e go be like say person just likes talking. That 10mm wey you see even thick sef. Go open those Solar generators make you see the funny things wey dey full inside am.

Tomorrow person go say Lithium battery dey catch fire.

If you wey get technical knowledge of things talk, person wey no get enough basic information go begin foam for mouth

ajabani4allah:
The only way to do this is to get the battery capacity meter below with 200A shunt or if you are handy(DIY guru) you can dismantle the battery get 200A JK smart BMS with 1A/2A active balancer and rebuild your battery. This is what I have just done, converting 2 pieces of 12v/280Ah lifepo4 battery to 24v/280Ah with the 200A JK Smart BMS. This second method is the best because you get to see everything going on around your battery and the BMS will manage your battery better. But is for those who are enthusiastic and have time.

You won't believe the type of wire I saw when opened up the battery pack. Imagine using 10mm wire thickness for a 12v/280Ah battery pack

This is long journey. @adminx already suggested DC shunt which is more portable can easily be reUsed

@osayuwamwen

Famicare 3.5kva/24V with inbuilt PWM Solar Charge Controller and 2units of 220Ah Tubular battery available for sale. Total Price = N600,000.
Location: Ibadan. (Suite 54, St James Cathedral Shopping Complex, Labaowo Ogunpa, Oke Bola, Ibadan).
Whatsapp: +2348063988765

AyobamiOluwole:
Ok
Take care too my Boy.

You don't know me, yet, you are comfortable disrespecting me😅 You are an interesting kid.

I really want to appreciate everyone on this thread for the knowledge and enlightenment you share.
I started my solar journey before I knew this thread, and I fell heavily into the hands of a predatory installer. Thank God for this thread and its good people, things are now very much better.



@JoeSef0, thanks for introducing me to the thread.

Thanks to @Dam5reey. I bought the protection box set and inverter from him. He also took the inverter to the service center for repairs and it was repaired under warranty. (About 1 month after purchase, lightning struck and destroyed 90+% of solar installations in our area)

Thank you everyone🙏

engrtobsang:
Famicare 3.5kva/24V with inbuilt PWM Solar Charge Controller and 2units of 220Ah Tubular battery available for sale. Total Price = N600,000.
Location: Ibadan. (Suite 54, St James Cathedral Shopping Complex, Labaowo Ogunpa, Oke Bola, Ibadan).
Whatsapp: +2348063988765

Is the tubular battery new?

iraybuju:
Even the half cut I get them for used ones 450watts half cut that I can sell for 55k

hi someone I know need half cut panel , how can One reach thee

waleayeni1:
You don't know me, yet, you are comfortable disrespecting me😅 You are an interesting kid.

I no fit laugh. Some of us are just too funny.

Omo, if I reply you again make I bend.

Hello good evening please who sells affordable 12v 2.5kwh lifepo4 battery here abeg……

I've come to notice something about Fouani. Sometimes the Items that says 'out of stock' are actually still available in shops. Got an induction cooker from them at Asaba, same cooker has been out of stock on website for since God knows when.

ajabani4allah:
I am a little bit confused about this Bulk and floating voltage, is the bulk the same thing as the OVP and float OVPR on the JK BMS parameters?

No, bulk voltage and float voltage is to be set on your controller.
The OVP in your BMS is to protect against the cells getting overcharged.

Unfaized:
I've come to notice something about Fouani. Sometimes the Items that says 'out of stock' are actually still available in shops. Got an induction cooker from them at Asaba, same cooker has been out of stock on website for since God knows when.

perhaps that items has not been digitised yet

bkuranga:
No, bulk voltage and float voltage is to be set on your controller.
The OVP in your BMS is to protect against the cells getting overcharged.

Thanks, but it seems bulk voltage value are usually set equal to OVP of the bms

Gshems:
My powmr wont give more than 280watt to my 12v 100ah lifepo4 battery. Even when I put a 300watt load on my inverter and my multimeter gives 31v and 19amps

This has happen to me before, it turned out that I have rust at the box behind the solar panel from moisture from rain etc

codemaster2much:
This has happen to me before, it turned out that I have rust at the box behind the solar panel from moisture from rain etc

Boss Na my panels ó. Fake panels.

Just finished a cap. test for my 4 months old battery....
Everywhere seems to be good😉

I love the Chinese. Sometimes they don't just give a fück about aesthetics. This is someone casually using BYD blade cells (15kwh each) and even built contraption to get it hanging off a wall

Flies wire as if he had once worked for NITEL/NEPA.

Anyways it works, that's all that matters